
declare module Microsoft.Office.WebExtension {

    export module MailboxEnums {

        /** Specifies an item's type. */
        export enum ItemType {
            /** Specifies an appointment item. This is an IPM.Appointment type. */
            Message,
            /** A meeting request, response, or cancellation. This corresponds to the following message classes in Outlook:
                IPM.Schedule.Meeting.Request
                IPM.Schedule.Meeting.Neg
                IPM.Schedule.Meeting.Pos
                IPM.Schedule.Meeting.Tent
                IPM.Schedule.Meeting.Canceled */
            Appointment
        }
    }
}